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The LCM of 1680 and 420 is 1680.
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Find least common multiple (LCM) of: 3360 & 840 840 & 210 5040 & 1260 560 & 140 8400 & 2100 336 & 84 240 & 60 3360 & 420 1680 & 840 5040 & 420 1680 & 1260 8400 & 420 1680 & 2100 1680 & 2940
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